BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.1/12947 caller is radix_tree_node_alloc+0x1b3/0x3b0 lib/radix-tree.c:261 CPU: 1 PID: 12947 Comm: syz-executor.1 Not tainted 5.12.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x202/0x31e lib/dump_stack.c:120 check_preemption_disabled+0x181/0x190 lib/smp_processor_id.c:53 radix_tree_node_alloc+0x1b3/0x3b0 lib/radix-tree.c:261 radix_tree_extend+0x15b/0x600 lib/radix-tree.c:423 idr_get_free+0x1c4/0xb60 lib/radix-tree.c:1492 idr_alloc_u32+0x176/0x2f0 lib/idr.c:46 qrtr_port_assign net/qrtr/qrtr.c:728 [inline] __qrtr_bind+0x1fc/0x810 net/qrtr/qrtr.c:791 qrtr_autobind net/qrtr/qrtr.c:822 [inline] qrtr_sendmsg+0x396/0xb40 net/qrtr/qrtr.c:930 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg net/socket.c:674 [inline] ____sys_sendmsg+0x5a2/0x900 net/socket.c:2350 ___sys_sendmsg net/socket.c:2404 [inline] __sys_sendmmsg+0x500/0x790 net/socket.c:2490 __do_sys_sendmmsg net/socket.c:2519 [inline] __se_sys_sendmmsg net/socket.c:2516 [inline] __x64_sys_sendmmsg+0x9c/0xb0 net/socket.c:2516 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f453310f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 0000000000000001 RSI: 0000000020007000 RDI: 0000000000000003 RBP: 00007f453310f1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe4ca67b9f R14: 00007f453310f300 R15: 0000000000022000